Event: Reigate

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Opponent Rating Result
Leonid Stepanenko 0 0 - 1
Ben Nicol 1233 0 - 1
Joseph Nebel 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

144 = (1233 + 400 * (0 - 2)) / 3)

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